Exhibit 99.1 PRESS RELEASE SEACOR MARINE ANNOUNCES THIRD QUARTER 2025 RESULTS Houston, Texas October 29, 2025 FOR IMMEDIATE RELEASE - SEACOR Marine Holdings Inc. (NYSE: SMHI) (the "Company" or "SEACOR Marine"), a leading provider of marine and support transportation services to offshore energy facilities worldwide, today announced results for its third quarter ended September 30, 2025. SEACOR Marine's consolidated operating revenues for the third quarter of 2025 were $59.2 million, operating income was$18. ...